In light of previous feedback, can you tell me where I can improve?

The issues are as follows:

You are still altering the silhouettes of your forms quite freely, taking many actions in 2D space (where we just regard the drawing as though it is a collection of lines and shapes on a flat page), rather than ensuring that every new addition is its own complete, self-enclosed form.

You continue to be quite inconsistent with your animals' legs, to varying degrees. Sometimes you don't use the sausage method at all (we see this in your ducks' legs for instance), sometimes you'll apply aspects of the sausage method but neglect to adhere to specific requirements - using ellipses instead of sausages, or not defining the joints between the segments with contour lines, etc.

I'm also not seeing any use of the diagrams I shared with you which demonstrated how you can build on top of those sausage structures to add bulk where it's needed.